Version 1

[yaffs-website] / web / core / lib / Drupal / Core / Render / Element / Textarea.php

diff --git a/web/core/lib/Drupal/Core/Render/Element/Textarea.php b/web/core/lib/Drupal/Core/Render/Element/Textarea.php
new file mode 100644 (file)
index 0000000..340bc11
--- /dev/null
+++ b/web/core/lib/Drupal/Core/Render/Element/Textarea.php
@@ -0,0 +1,65 @@
+<?php
+
+namespace Drupal\Core\Render\Element;
+
+use Drupal\Core\Form\FormStateInterface;
+
+/**
+ * Provides a form element for input of multiple-line text.
+ *
+ * Properties:
+ * - #rows: Number of rows in the text box.
+ * - #cols: Number of columns in the text box.
+ * - #resizable: Controls whether the text area is resizable.  Allowed values
+ *   are "none", "vertical", "horizontal", or "both" (defaults to "vertical").
+ *
+ * Usage example:
+ * @code
+ * $form['text'] = array(
+ *   '#type' => 'textarea',
+ *   '#title' => $this->t('Text'),
+ * );
+ * @endcode
+ *
+ * @see \Drupal\Core\Render\Element\Textfield
+ * @see \Drupal\filter\Element\TextFormat
+ *
+ * @FormElement("textarea")
+ */
+class Textarea extends FormElement {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getInfo() {
+    $class = get_class($this);
+    return [
+      '#input' => TRUE,
+      '#cols' => 60,
+      '#rows' => 5,
+      '#resizable' => 'vertical',
+      '#process' => [
+        [$class, 'processAjaxForm'],
+        [$class, 'processGroup'],
+      ],
+      '#pre_render' => [
+        [$class, 'preRenderGroup'],
+      ],
+      '#theme' => 'textarea',
+      '#theme_wrappers' => ['form_element'],
+    ];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function valueCallback(&$element, $input, FormStateInterface $form_state) {
+    if ($input !== FALSE && $input !== NULL) {
+      // This should be a string, but allow other scalars since they might be
+      // valid input in programmatic form submissions.
+      return is_scalar($input) ? (string) $input : '';
+    }
+    return NULL;
+  }
+
+}